Cross-Site Scripting Vulnerability in DNN CMS Affects Multiple Versions
CVE-2026-24836

7.7HIGH

Key Information:

Vendor

Dnnsoftware

Status
Dnn.platform
Vendor
CVE Published:
27 January 2026

What is CVE-2026-24836?

A Cross-Site Scripting vulnerability exists in the DNN (DotNetNuke) content management system, allowing malicious extensions to execute scripts within the PersonaBar through richtext log notes. This affects DNN versions from 9.0.0 up to 9.13.9 and 10.0.0 up to 10.1.9. It is essential for users to upgrade to versions 9.13.10 or 10.2.0 to mitigate this vulnerability.

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Deploy the Patch

Affected Version(s)

Dnn.Platform >= 9.0.0, < 9.13.10 < 9.0.0, 9.13.10

Dnn.Platform >= 10.0.0, < 10.2.0 < 10.0.0, 10.2.0

References

https://github.com/dnnsoftware/Dnn.Platform/security/advi...
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CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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